ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,539, issued on Aug. 26, was assigned to KOMATSU LTD. (Tokyo).
"Work machine" was invented by Kazuyoshi Okabe (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A work machine including a vehicle body configured to travel, a fan, an obstacle detection device, and a controller. The fan is configured to exchange air between an inside and an outside of the vehicle body through an opening provided toward a rear of the vehicle body. The obstacle detection device is installed behind the fan. The obstacle detection device is configured to detect an obstacle in the rear of the vehicle body. The controller is configured to control intake and exhaust of the...